Home / 721,787.14-1,082,364.54-342,816.22

Finding the Fourth Proportional to 721,787.14, 1,082,364.54 and 342,816.22

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Solution

The fourth proportional to 721,787.14, 1,082,364.54 and 342,816.22 is: 514,074.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,787.14 : 1,082,364.54 = 342,816.22 : x
  2. Step 2: Convert to fraction form
    721,787.14/1,082,364.54 = 342,816.22/x
  3. Step 3: Cross multiply
    721,787.14x = 1,082,364.54 × 342,816.22
  4. Step 4: Simplify right side
    721,787.14x = 371,052,120,264.84
  5. Step 5: Solve for x
    x = 371,052,120,264.84/721,787.14
  6. Step 6: Final answer
    x = 514,074.16

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.